Granted Patent
Utility
US 5,914,850 · App. 08/790,304
Contactor equipment
Inventor:
Gunnar Johansson
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Jan 31, 1997
Inventor
Gunnar Johansson
Assignee (at issue)
Asea Brown Boveri, S.A.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.